jfk1.m

电磁辐射的数值分析与仿真（基于MATLAB语言）。包括两个点电荷的电场

function varargout = jfk1(varargin)
% JFK1 M-file for jfk1.fig
%      JFK1, by itself, creates a new JFK1 or raises the existing
%      singleton*.
%
%      H = JFK1 returns the handle to a new JFK1 or the handle to
%      the existing singleton*.
%
%      JFK1('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in JFK1.M with the given input arguments.
%
%      JFK1('Property','Value',...) creates a new JFK1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before jfk1_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to jfk1_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help jfk1

% Last Modified by GUIDE v2.5 11-Jun-2005 11:23:19

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @jfk1_OpeningFcn, ...
                   'gui_OutputFcn',  @jfk1_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin & isstr(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before jfk1 is made visible.
function jfk1_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to jfk1 (see VARARGIN)

% Choose default command line output for jfk1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes jfk1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = jfk1_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes during object creation, after setting all properties.
function slider1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background, change
%       'usewhitebg' to 0 to use default.  See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
    set(hObject,'BackgroundColor',[.9 .9 .9]);
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject    handle to slider1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider


% --- Executes during object creation, after setting all properties.
function slider2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to slider2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background, change
%       'usewhitebg' to 0 to use default.  See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
    set(hObject,'BackgroundColor',[.9 .9 .9]);
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on slider movement.
function slider2_Callback(hObject, eventdata, handles)
% hObject    handle to slider2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider


% --- Executes during object creation, after setting all properties.
function pop_CreateFcn(hObject, eventdata, handles)
% hObject    handle to pop (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on selection change in pop.
function pop_Callback(hObject, eventdata, handles)
% hObject    handle to pop (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns pop contents as cell array
%        contents{get(hObject,'Value')} returns selected item from pop


% --- Executes on button press in push1.
function push1_Callback(hObject, eventdata, handles)
% hObject    handle to push1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
Ka=(get(handles.slider1,'Value')+eps);
Kb=(get(handles.slider2,'Value')+eps);
Ka1=Ka*pi;Kb1=Kb*pi;
set(handles.edit1,'string',num2str(Ka));
set(handles.edit2,'string',num2str(Kb));

T=0:0.1:2*pi;A=T;
n=get(handles.pop,'Value');
popstr={'spring','summer','autumn','winter','hot','cool','jet'};
[t,a]=meshgrid(T,A);
f=(1+cos(t+eps)).*sin(Ka1*sin(t+eps).*cos(a+eps)).*sin(Kb1*sin(t+eps).*sin(a+eps))./(Ka1.*sin(t+eps).*cos(a+eps).*Kb1.*sin(t+eps).*sin(a+eps));
[x,y,z]=sph2cart(t,a,f);
  axes(handles.axes1);
  surf(x,y,z);colormap(popstr{n});title('球坐标');
  axes(handles.axes2);
  surf(t,a,f);colormap(popstr{n});title('直角坐标') ;   
   

% --- Executes on button press in push2.
function push2_Callback(hObject, eventdata, handles)
% hObject    handle to push2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
close;


% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double


% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

Ka=(get(handles.slider1,'Value')+eps);
Kb=(get(handles.slider2,'Value')+eps);
Ka1=Ka*pi;Kb1=Kb*pi;
set(handles.edit1,'string',num2str(Ka));
set(handles.edit2,'string',num2str(Kb));


t=0:0.01:2*pi;
n=get(handles.pop,'Value');

f1=(1+cos(t)).*sin(Ka1*sin(t))./(Ka1*sin(t));
f2=(1+cos(t)).*sin(Kb1*sin(t))./(Kb1*sin(t));
  axes(handles.axes1);
  polar(t,f1);title('f({\theta},0)');
  axes(handles.axes2);
  polar(t,f2);title('f({\theta},{\pi}/2)');